Check my reviews, I learned my lesson the hard way.
I'd avoid that site like the plague mate. Even if the photos are genuine (which is in the low percentage of profiles) chances are the person at the door will look nothing like their profile, either because the photo was taken ages ago or it's a bait & switch, where there are 2 girls working from the same profile, the one in the photos - who attends to her regulars - and her usually less attractive mate - who takes care of the rest.
Even by slim chance you do manage to get a looker on there, the punt will likely be utter shite. By experience, they're all clock-watchers with lousy attitudes. You pay for the hour, she farts about for the first five to ten minutes and kicks you out 10 minutes early. You want oral? Ha, extra tenner. Want to switch positions? Same.